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My cat's Frontline isn't working. Can I switch to Revolution now?

Updated On September 23rd, 2025

Pet's info: Cat | Russian Blue | Male | unneutered | 5 lbs

I have my cat frontline plus on aug 1st but it's not working can I switch to revolution now or do I have to wait to 30 days to apply it

2 Answers

Most Helpful Answer

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Answered By David Darvishian

Veterinarian

Published on August 17th, 2017

Hi and thanks for using Petco Pet Education Center, formerly Petcoach! Sorry to hear that Negrito is having a flea problem. Since Frontline Plus and Revolution are 2 totally different products, you can apply the Revolution now and not wait until the full month is done. You shouldn't see any problems and if you do, I would advise calling your vet. Very occasionally cats and dogs will have problems with one topical product and not another. Just make sure that you apply it correctly right up over the neck where Negrito can't lick it off as soon as it is applied. Good luck and I hope Revolution works well for him. I do believe we are starting to see some problems with Frontline as I have witnessed the same problem last summer when using Frontline.

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28Pet Parents found this answer helpful

Other Answers

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    Answered By Dr. Macartney, BVet Med, MRCVS

    Veterinarian

    Published on

    I am so sorry to hear this, I also do not see much success with frontline. I wooold not advise using an additional medication until the 30 days is over. This will ensure that Negrito's system is not overwhelmed. You could try treating your home in the meantime as fleas spend most of their lifecycle off iof cats and dogs and in the environment.

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    6Pet Parents found this answer helpful

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